| 摘要 |
<p>1. Hydraulic dynamometer comprising a flat, thin-walled capsule (1) filled with essentially incompressible liquid and connected to a pressure measuring instrument (17), capsule clamped between two rigid members ensuring transmission thereto of the force to be measured, characterized in that these two members are on the one hand a piston (9) and on the other hand a cylinder head (4) and a cylinder (5), one of the members being centred without contact with respect to the other, whilst the capsule, bearing against the piston (9) and the cylinder head (4) of the cylinder (5), has its edge embedded in a peripheral groove made at the connection of the cylinder head (4) and the cylinder (5) so that the free surface of the capsule is reduced to a narrow flat annular portion included between the piston (9) and the cylinder (5).</p> |
